style: fix cargo warnings (unused imports, dead_code)

src/providers/gemini.rs

@@ -107,6 +107,7 @@ struct GeminiFunctionCallingConfig {
 struct GeminiCandidate {
     content: GeminiContent,
     #[serde(default)]
+    #[allow(dead_code)]
     finish_reason: Option<String>,
 }
 

src/server/mod.rs

@@ -5,24 +5,7 @@ use axum::{
     response::sse::{Event, Sse},
     routing::{get, post},
 };
-use futures::stream::StreamExt;
-use sqlx;
-use std::sync::Arc;
-use std::time::Duration;
-use tracing::{info, warn};
-use uuid::Uuid;
 
-use crate::{
-    auth::AuthenticatedClient,
-    errors::AppError,
-    models::{
-        ChatChoice, ChatCompletionRequest, ChatCompletionResponse, ChatCompletionStreamResponse, ChatMessage,
-        ChatStreamChoice, ChatStreamDelta, Usage,
-    },
-    providers::ProviderStreamChunk,
-    rate_limiting,
-    state::AppState,
-};
 
 pub fn router(state: AppState) -> Router {
     Router::new()
@@ -34,6 +17,8 @@ pub fn router(state: AppState) -> Router {
         ))
         .with_state(state)
 }
+}
+}
 
 /// GET /v1/models — OpenAI-compatible model listing.
 /// Returns all models from enabled providers so clients like Open WebUI can